Corsair HX1050 1050W Power Supply Review

Testing:

Temperature, Noise Levels and Fan Speeds:

I am not going to give a pass or fail in this section, as the ATX12V V2.2 does not really have any references on which to base a decision.

Temperatures are purely for information only, as there are too many variables involved when installed in a case, which, by the way, it wasn't. Ambient temperature, processor cooling efficiency and case cooling fans all play their part on the temperature of the air entering the power supply, and consequently the temperature of the air leaving it. No valid conclusions can be made from this test.

Corsair HX1050 1050W (CMPSU-1050HX) Temperature & Fan Speeds

Supply = 110VAC/230VAC

DC Loading(W)

Temp In (°C)

Temp Out (°C)

Δ Temp (°C)

Fan Speed (RPM)

0

N/A

N/A

N/A

740/743

237/240

22.4/22.6

27.6/25.3

5.2/2.7

738/739

535/545

22.5/23.4

30.1/28.2

7.6/4.8

731/732

1080/1074

23.2/23.3

35.8/32.4

12.6/9.1

1347/1138

The Corsair HX1050 temperatures and fan speeds are typical of many power supplies in this class. Noise is of course subjective, but the fan speeds closely mirrored the noise/power supply loading graph shown on the packaging. The fan speed remained relatively low at approximately 740RPM (quoted at 20dB) until somewhere beyond 50% DC loading point at which time it ramped up to 1300RPM (quoted at 35dB) at full load. The Yate Loon fan is rated at 2800RPM and a rather loud 48.5dB so it's obviously not fully driven.